Mail Merge & CRM

Mail Merge & CRM

Hi, 

We are business to consumer and some times we have to send physical letters to our customers. If i run a mail merge it all works great. When I go back to that record is there somewhere I can see that a mail merge has been sent and the content of the letter? To get round this just now I have been saving the letter then uploading it to attachments. Looking for a quicker way! Thanks!